202001312231121 has 32 divisors (see below), whose sum is σ = 291096634068352. Its totient is φ = 123861355338240.

The previous prime is 202001312231113. The next prime is 202001312231153. The reversal of 202001312231121 is 121132213100202.

It is not a de Polignac number, because 202001312231121 - 2³ = 202001312231113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001312231161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175056711 + ... + 176206851.

It is an arithmetic number, because the mean of its divisors is an integer number (9096769814636).

Almost surely, 2^{202001312231121} is an apocalyptic number.

It is an amenable number.

202001312231121 is a deficient number, since it is larger than the sum of its proper divisors (89095321837231).

202001312231121 is a wasteful number, since it uses less digits than its factorization.

202001312231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166353.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 202001312231121 its reverse (121132213100202), we get a palindrome (323133525331323).

The spelling of 202001312231121 in words is "two hundred two trillion, one billion, three hundred twelve million, two hundred thirty-one thousand, one hundred twenty-one".